Since 2004,, when the first sightings were made in Britain, the Harlequin ladybird (which originates from Asia) has been devouring Britain’s native ladybirds and eating their food, according to entomologists. To control scale insects, aphids and other pests in Europe and North America, the Harlequin ladybird has been artificially introduced. The UK Ladybird Survey says it is the most invading ladybird today. Because it can be found in many colour varieties (a Harlequin, which is an invasive ladybird in the UK Ladybird Survey), is often masked in colourful costumes and adorned in diamond-patterned patterns. Harlequin ladybird Harmonia axyridis Image: Wikimedia. Harmonia axyridis has established itself in South America as well as North America. Today, it is the most common species of North American bird and has taken over most of North-western Europe. At the moment, there are 46 species of Ladybirds (Coccinellidae). Recent Harlequin arrivals could threaten the survival of many native species. Harlequin Ladybird survey says they will be monitoring the spread of this invasive species across the country, and assessing its effect on native ladybirds. Brits are invited to join the Harlequin Ladiesbird Survey in monitoring ladybirds. We want you to be involved. It asks that you record any sightings of harlequin ladybirds on its website. Today, the rapid spread of Harlequin ladybirds in the six first years is still evident (see above). (Image: harlequin-survey.org) So what? Aren’t all ladybirds just ladybirds? Although the Harlequin ladybird has a preference to aphids over other foods, it is also a generalist feeder. It will often outfeed all other ladybirds. Our ecosystems have many roles for different ladybird species. Scientists believe that if species disappear because Harlequins eat all of the ladybirds and get the majority of the food, then our ecosystems may be in danger. Harlequins love to eat larval ladybirds, especially those that are still in their juvenile stages. It is easy to mistake Harlequin ladybirds for other species. They come in many different patterns and colours. (Image: harlequin-survey.org) The harlequin ladybird, also known as the Multicoloured Asian Ladybird and the Halloween Ladybird, has a very variable appearance, which can make it difficult to tell apart from Britain’s native ladybirds. You might be able to identify them by looking at this webpage.
Harlequin Ladybird Invasion: Eating Britain’s Domestic Ladybird Population
